Cart 0

Celestron Dew Heater Ring

RM 199.00

Dew Heater Ring For Celestron Schmidt Cassegrain

Celestron Dew Heater Ring is ideal dew prevention solution for your Celestron telescope. This must-have accessory will improve your observing or imaging nights year-round. Dew Heater Ring permanently mounts to your Celestron Schmidt-Cassegrain, EdgeHD, and RASA optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions).


How it works

Dew Heater Ring replaces plastic retaining ring on your Schmidt corrector lens for efficient heating across lens. The ring is constructed of lightweight, durable aluminum. Its rigid frame supports cable circuity and telescope's Schmidt corrector lens. Unlike other heating bands or strips that inefficiently heat lens cell to warm the glass, Celestron Dew Heater Ring heats corrector glass directly, providing most efficient transfer of heat to prevent dew formation. 

Simply plug ring into an external 12V DC power source for consistent, continuous heat that will prevent dew from forming even under heavy dew conditions. Dew Heater Ring features two storage clips to keep power and thermistor jacks secure when not in use while accommodating the telescope's dust cover.

Dew Heater Ring also comes with a cable management clip that connects to the telescope's front cell. Corral the power and thermistor jack to prevent them from dangling and reduce unwanted pulls on the cable connection to the rings.


Dew Heater Ring comes complete with:

  • Dew Heater Ring
  • Cable management clip
  • Power jack extension cable
  • Paper installation shield


We also recommend adding a dew shield to your setup. While not mandatory, a shield will cut down on the amount of power the Dew Heater Ring needs to keep the optics clear.